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Bug 1597072 - [RFE] Support for RWO and RWX access mode for default storage class
Summary: [RFE] Support for RWO and RWX access mode for default storage class
Keywords:
Status: ASSIGNED
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: Storage
Version: 3.9.0
Hardware: Unspecified
OS: Linux
unspecified
low
Target Milestone: ---
: 3.11.0
Assignee: Bradley Childs
QA Contact: Liang Xia
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-07-02 01:34 UTC by Selim Jahangir
Modified: 2018-12-19 07:33 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Last Closed:
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Description Selim Jahangir 2018-07-02 01:34:49 UTC
1. Proposed title of this feature request
Support for RWO and RWX access mode for default storage class

2. Why does the customer need this? (List the business requirements here)
Currently it is only possible to define one default storage class. In installations where both file storage and block storage are available, this leads to either of two cases:
- File storage is defined as the default storage class, so databases and e.g. Elasticsearch don't run optimally or don't run at all because of missing POSIX compatibility and slower performance compared to block storage
- Block storage is defined as the default storage class, so applications that have a persistent volume attached and are "cloud-aware" (could be scaled to multiple instances) cannot be scaled to more than one instance because the PV cannot be mounted more than once

A default storage class based on access mode could solve this problem. This would mean that instead of only one default, there would be at least two, one for "once" and one for "many" access mode.

3. Is there already an existing RFE upstream or in Red Hat Bugzilla?
   No

4. Does the customer have any specific timeline dependencies and which release would they like to target (i.e. OCP 3.9 or 3.10 etc)
 
 As soon as possible

5. List any affected packages or components. 
 OpenShift Storage class


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